Vintage Vehicle Services

Pritch · Guru

Vintage Vehicle Services

ABC123 · Uber Guru

Fully agree !

Welcome to the Page 1 of 1 club biggrin

Canadian Poncho · A Poncho Legend!

I wonder if they could narrow down the number built with the 4 speed?

Pritch · Guru

Good point, Todd. I wish I could find out how many of the Custom Sports were convertibles and how many were 4 speeds. If only 2915 of the same model number were ever made, I'd be curious to know the breakdown.

Pontiacanada · A Poncho Legend!

Good stuff!

cdnpont · Canadian Poncho Superstar!

What is RPO X09 - Speedo adapter?

Pritch · Guru

Speedometer Reducer Ratio Adapter.jpg

An RPO (Regular Production Option) speedo adapter is used to assist in correct speedo calibration. Here are a couple of pictures I found on the internet. I am certain someone on this site can tell us more about these adapters.

-- Edited by Pritch on Wednesday 11th of December 2019 08:35:16 PM

long stroke · Canadian Poncho Superstar!

Pritch wrote:

An RPO (Regular Production Option) speedo adapter is used to assist in correct speedo calibration. Here are a couple of pictures I found on the internet. I am certain someone on this site can tell us more about these adapters.

-- Edited by Pritch on Wednesday 11th of December 2019 08:35:16 PM

I never knew such a device existed. Just goes to show, you learn something almost every day.

long stroke · Canadian Poncho Superstar!

This is a great service but the guys with 60's and 70's cars get more information than us guys with 50's and older cars. GM Canada started keeping better records of the vehicles they produced from the 60's onward.

Prefectca · Poncho Master!

Interesting to see the option for electric wipers. Does this signify two speed wipers? I am sure that vacuum wipers were gone by 1964.

Paul

gparis7 · Canadian Poncho Superstar!

Nice powertrain in your car - 300 Hp 327 and 4 speed. I like that.

Pritch · Guru

Paul, you are correct. C14 means 2 speed electric wipers.

Glenn Musgrave · Addicted!

If I'm reading the sheet correctly 2,915 were V8 convertibles. When you go to Model Number and look at the description it specifies CS V8 convertibles. Love, Love, Love your power train, that would be a fun ride and sharp looking too! Congrats.

bjburnout · Uber Guru

gparis7 wrote:
Nice powertrain in your car - 300 Hp 327 and 4 speed. I like that.

That 327 300 and a 4 speed would have been a formidable car on the street in '64.

Almost bought the identical setup in a 64 Impala SS in April 64........just that close....... biggrin

silver steak · Addicted!

An RPO (Regular Production Option) speedo adapter is used to assist in correct speedo calibration. Here are a couple of pictures I found on the internet. I am certain someone on this site can tell us more about these adapters.

-- Edited by Pritch on Wednesday 11th of December 2019 08:35:16 PM

Long Stroke Wrote

I never knew such a device existed. Just goes to show, you learn something almost every day.

Well I learned something as well, I recently began work on my 1956 Studebaker Truck Project and today I learned what the little device is on the side of my transmission. it has the exact same RPO on it.

Dale

koolconvertible · Poncho Master!

Excellent! Found out my RHD vert was 1 of 48 built for export to the RHD market. people talk about rarity and low production numbers. Mine is 1 of 48 worldwide...cool as..

Double D · Addicted!

My Vintage vehicle report says 200 were built with a 327 300 HP 4 speed I will try to pst my copy

Double D · Addicted!

cdnpont · Canadian Poncho Superstar!

I'm still curious as to why the speedo adapter?

Is it the fact that the speedo drive gear will not support a driven gear (pencil) suitable for this cars rear end ratio?

I've read that the early Muncie's had a 6 tooth steel drive gear, and the only driven pencil available was a 20 tooth steel. If this is the case, then we know the reason for an external adapter.

Pritch · Guru

Excellent post, David. Thank you so much for sharing this information. Is this number the combined total production numbers for 300hp 4 speeds including hardtops and convertibles? Or, is there a possible further breakdown of convertible and hardtops with this drivetrain? Thanks again for the post.

Double D · Addicted!

7467 is the model number of a 1964 Pontiac Parisienne Custom Sport Convertible. My understanding was there were 200 built. Although (I have no confirmation) I have heard the number of 130. Maybe if someone knows George from Vintage Vehicles they could ask him for clarification

Pritch · Guru

David, I understand what you mean. Thank you for the clarification.

unruhjonny · Guru

I believe the speedo apaters were used when the assembly line tranmissions had limitations with the differential/tire combinations;
IIRC they were used into the early 1980's, I have a couple in my little collection - I intend to use one I have to correct the speedo for 3.90:1 gearing (from 3.55:1).